Pipe-repairing otjtpit



D. S. ROTA PIPE REPAIRING OUTFIT Nov. 2 1926.

Filed OCT.. 2. 1925 INVENTOR. W42@ ATTORNEL xNIIWIMNAI/QNANNN ffffffffffffffffffff l f end of the pipe 4 is Patented Nov. '2,k 1926.

SERGIO ROTA, 0F PHILADELPHIA,

DOMENICO PENNSYLVANIA.

PIPE-REPAIBING OUTFIT.

Application led Getober 2, 1925.

This invention relates to pipe outfits and more particularly ful in the repair of conduits or electric light cables,

repairing to a device useducts for telephone wires and so forth. Conduite or ducts of the type mentioned are usually lmade of pottery-ware or analogous moisture-proof non-conducting material and of lengths varying from one to twenty-five feet long. In

ture or other damage pense 'is involved in digging up roadways to locate and repair An object of my invention a novel means whereby pipes, the like of the character referred expeditiously repaired` with the expenditure of time and labor.

Another object is to provide a the purpose specied struct, eective in use and dency to derangement range conditions.

With the foregoing use when a fracthereto of unforeseen character obtains considerable labor and exstreets or such damage; is to provide conduits and to can be minimum device for which is simple to confree of when used under long any tenand other objects in View as will hereinafter evidence themselves,

` my invention consists essentially in features of construction, rangement of parts later on typically illustrated by sheets of drawings, and the whereof are tersely recited in the claim.

In the drawings the novel combination andarfully explained, the accompanying novel features.

sub]l oine d Figure 1 is a broken longitudinal section through a device embodying the present improvements.

Figure 2 is a illiistrative of the g'ure 3 is a transverse section part sectional isometric view use of my invention; and,

through the device showing how a pipe fracture is neatly repaired.

According to vention illustrated I take a eighthinch piping length the embodiment of my inof three- 4, of suitable length, and

form a series of staggered saw-cuts 5 therein at convenient intervals. This internally screw pipe 4 is threaded at one end to receive a plug 6, and externally threaded to Iaccommodate a pair of co-operative clampin 'tted with a lock washers 7 and nuts 8. The other reduction nipple 9 counterbored to receive packing 10 and a screwfthreaded gland 11 that sim- .the manner well known,

Serial No. 60,135.

ilarly supports an infiating valve 12o of conventional type.

Similarly the end of the pipe 4 provided with the parts just described isfexternally screw threaded to receive lock washers 13 hereinafter explained.

In use, and referring more particularly to Figures 2 and 3, a fragmentary portion of an electric cable or other conduit is designated 22 and as having a broken or fractured portion 23. The fracture 23 is firstly located by means of rods-not shown-in and the street or roadway is opened up at the proper location to expose said fracture, whereupon the deflated device is inserted from the nearest man-hole opening and forcedalong the pipe 22 until it is located in position below the fracture 23. Incidentally it may be here remarked that should the fracture 23 be at a distance from the man-hole greater than the length of the pipe 4, a second or more lengths of such piping is coupled to the device by removing the valve and gland 11, in an obvious. manner, and connecting nonsaw-cut lengths vof pipe thereto. Now it will Le clearly apparent lthat by applying an ordinary pneumatic pump or inflator to the valve 12, and pumping in air, that the tube 15 will 4be expanded into engagement interior of the non-expansible casing 17 'and the'latter distended to its fullest diameter causing the shroud or sleeve- 21 to be expanded 4until it conforms to the inner conover .into alignment withl a neat and clean repair has been efected whereupon lthe street or roadway is filled in again in accordance with known procedure. The shroud or sleeve 21 effectively prevents the cement 24 from adhering to the device while ensuring a smoothly finished inner surface repair to the lconduit 22.

From the foregoing it is'thought that the utility, time and labor saving advantages of my invention will be self evident; while it is equally appa-rent minor detail changes as to size and proportions therein may be readily effected without departing from the scope of said invention the advantages thereof.V

or sacrificing any of Patent, is z- A repair outfit for pipes comprising a non-elastic casing surrounding sai from; an expan means providing a valve control inletto the inner tube.

In testimony September, 1925.

and an expansible shroud casing and separate theresible inflatable inner tube within and independent of the casing; and

whereof I have affixed m signature at Philadelphia, this 30th day of DOMENICO s. ROTA. 

